Derby was approaching her last year in college in 1960 when she visited countries such as Nigeria, France, and Italy. During her time she began appreciating the differences in cultures and learning about the struggles the countries were facing. who contributed in developing literacy materials to help prepare black people to pass the required, yet discriminatory literacy test for voter eligibility in Mississippi. As a SNCC organizer in Jackson, Mississippi, Derby felt compelled to work in the South as she saw a need for change through her life experiences. Her experience moving to the South as a native northerner sparked and ignited her. A war on the home front had been started. For this reason, people from all walks of life, backgrounds and ethnic groups were called to work together for a greater cause. Many individuals participated and were committed to the movement, however, black people were most impacted by the injustice of the South and took this time to really take a stance. Derby felt that a repertory theater company could travel throughout the state and incorporate all of the arts through the development of a cultural format. Creating a space for interaction with the people in the movement and the grassroots community who had suffered the most. The theater would be a vehicle that could be used to inform and perhaps reveal new creative strategies to deal with the institution of segregation. "We needed to look into ourselves in order to empower ourselves and reclaim the freedom we did not have in Mississippi and other southern states." Derby was also involved in the marketing, public relations, and training of these groups. In 1967 she joined Southern Media, Inc., a documentary, photography, an filmmaking group in
Jackson, Mississippi, that traveled throughout the state documenting the lives, struggles, initiatives and gains of people in and around the movement. She lectured and exhibited at
Jackson State College on African art and culture. Her many "trials and tribulations" in the SNCC and FST in Mississippi are reflected in her independently published book
Poetagraphy: Artistic Reflections of a Mississippi Lifeline in Words and Images: 1963–1972 (2019). == Further education and achievements ==